Lower courts are divided on the Fourth Amendment implications of a drug detection dog that jumps into a car on its own and then alerts to illegal drugs. I thought I would offer some thoughts on the ...

The Fourth Amendment’s warrant requirement boasts plenty of exceptions, and the practitioners must routinely ask the U.S. Supreme Court to consider the parameters of these exceptions. Continuing the ...

The circuit split might just persuade the U.S. Supreme Court to take up the matter, breaking its now six-year hiatus from hearing Fourth Amendment cases. This is the first part of a two-part series.

On April 27th, the Supreme Court will hear oral argument in Chatrie v. United States, on the Fourth Amendment implications of geofencing. I have already posted the amicus brief I wrote for the Court ...

How long can the government keep your property after lawfully seizing it? According to the D.C. Circuit in a recent decision, as long as the continued possession is still reasonable under the Fourth ...